骨(ほね)に刻(きざ)むto engrave in one's heart, to inscribe on one's bones

僕(ぼく)は父親(ちちおや)の教訓(きょうくん)を骨(ほね)に刻(きざ)んでいる。

I have engraved in my heart my father's lessons.

母(はは)が娘(むすめ)に：「この教(おし)えをしっかり骨(ほね)に刻(きざ)みなさい。」

The mother said to her daughter, "Engrave this teaching firmly in your heart."

友人(ゆうじん)の忠告(ちゅうこく)を骨(ほね)に刻(きざ)んでいたおかげで騙(だま)されなかった。

Thanks to having engraved in my heart my friend's advice, I wasn't deceived.

両親(りょうしん)からの忠告(ちゅうこく)を骨(ほね)に刻(きざ)まなかったせいで痛(いた)い目(め)に遭(あ)いました。

I had a painful experience because I didn't engrave in my heart the advice from my parents.

母(はは)の教訓(きょうくん)を骨(ほね)に刻(きざ)んでいたらこんなトラブルには巻(ま)き込(こ)まれなかったものを…。

If I had engraved my mother's teachings in my heart, I wouldn't have gotten caught up in this kind of trouble...